Knife holder



FIG. 1 is a top, rear, right side perspective view of a knife holder showing my new design;

FIG. 2 is a bottom, rear, left side perspective view thereof;

FIG. 3 is an enlarged front elevation view thereof;

FIG. 4 is an enlarged rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is an enlarged top plan view thereof; and,

FIG. 8 is an enlarged bottom plan view thereof. 

CLAIM The ornamental design for a knife holder, as shown and described. 